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81.
Heightened attention to international accounting rates at the ITU and the WTO has led some observers to conclude that carriers soon will impose cost-based termination charges. This article concludes that while accounting rates have declined on some routes, many incumbent carriers can and will delay or thwart progress. The article examines the FCC's unilateral regulatory initiative as evidence of a growing schism between governments keen on immediate progress and those that fear a ‘free fall’ in accounting rates and a quick end to settlement surpluses. The article also considers technological innovations like call-back and Internet telephony with an eye toward assesssing whether and how widespread accounting rate reductions will occur. 相似文献
82.
Cross sectional estimation of convergence regressions is known to be hazardous if there is convergence towards heterogeneous steady state values. In this paper, Monte Carlo methods are used to investigate the implications of this parameter heterogeneity problem. The cross sectional and pooled OLS estimators are compared with a panel estimator which is unaffected by heterogeneity. If there is heterogeneity, the latter outperforms both the unconditional and conditional cross sectional and pooled OLS estimators. 相似文献
83.
Abstract The purpose of this study is to examine the information search behavior of Hong Kong's inbound tourists, in particular business and leisure travelers. The study clearly shows that business and leisure travelers demonstrate different information search behavior. ‘Personal experience,’ ‘Travel agency/tour company,’ ‘Airlines’ and the ‘Internet’ are most frequently relied upon by business travelers in searching for travel information, while leisure travelers prefer ‘Travel agency/tour company,’ ‘Friends or relatives,’ ‘Travel guide books,’ and ‘Personal experience.’ The study also reveals that the total number of information sources used and the length of pre‐trip planning lead‐time are significantly different between these two groups of travelers. First time travelers also have a longer pre‐trip planning lead‐time than repeat travelers. Furthermore, business and leisure travelers perceive the levels of influence of several information sources, including ‘Corporate travel departments,’ ‘Friends or relatives,’ ‘Travel guide books,’ and the ‘Internet,’ differently. These information sources were classified into five different dimensions, including ‘Media,’ ‘Neutral,’ ‘Retail,’ ‘Interpersonal,’ and ‘Personal experience.’ Analysis based on travelers' purpose for traveling and demographic information was performed. Leisure travelers perceive the level of influence of ‘Neutral’ sources as significantly higher, and those with lower household incomes perceived the level of influence of ‘Personal experience’ as lower. The results of this study will allow marketers in Hong Kong to better understand travelers’ information search behavior so that they can more effectively tailor their marketing strategies to these two major markets. 相似文献
84.
Survey research has reached an era when the Internet is commonly used as a research tool in different fields of study. Yet, the use of this method in tourism and hospitality research has not been fully explored. This study provides a state-of-the-art assessment of journal publications in the past ten years to reveal how the Internet has been incorporated into tourism and hospitality research. Various aspects of online research in tourism and hospitality are identified via reviewing relevant articles retrieved from the EBSCOhost. 相似文献
85.
This paper considers the implementation of a nonstationary, heterogeneous Markov model for the analysis of a binary dependent variable in a time series of independent cross sections. The model, previously considered by M offitt (1993), offers the opportunity to estimate entry and exit transition probabilities and to examine the effects of time-constant and time-varying covariates on the hazards. We show how ML estimates of the parameters can be obtained by Fisher's method-of-scoring and how to estimate both fixed and time-varying covariate effects. The model is exemplified with an analysis of the labor force participation decision of Dutch women using data from the Socio-economic Panel (SEP) study conducted in the Netherlands between 1986 and 1995. We treat the panel data as independent cross sections and compare the employment status sequences predicted by the model with the observed sequences in the panel. Some open problems concerning the application of the model are also discussed. 相似文献
86.
In this paper, we develop an efficient lattice algorithm to price European and American options under discrete time GARCH processes. We show that this algorithm is easily extended to price options under generalized GARCH processes, with many of the existing stochastic volatility bivariate diffusion models appearing as limiting cases. We establish one unifying algorithm that can price options under almost all existing GARCH specifications as well as under a large family of bivariate diffusions in which volatility follows its own, perhaps correlated, process. 相似文献
87.
In the Canadian grain marketing system, grains have typically been cleaned to very tight levels at port elevators. In recent years, changes in rail rates, livestock production and grain handling technology are pressuring the system for change. A mathematical programming model of vertical marketing functions in western Canada is developed to determine optimal locations for cleaning. Cleaning margins are positive in all regions of the prairies. Grain cleaning is found generally to be more efficient on the prairies than at the ports. However, grain cleaning will continue at ports to some extent because of inadequate capacity at country positions and sunk costs at port facilities and because primary elevators will likely clean only the dominant grains. Dans le système canadien de commercialisation des céreales, les grains passent généralement par un nettoyage très rigoureux aux silos portuaires. Ces dernières années, les changements affectant les tarifs ferroviaires, les productions animales et la technologie de manutention des céréales rendent cependant nécessaire un changement du système. Les auteurs utilisent un modéle mathématique de programmation des fonctions verticales de mise en marché pour déterminer les emplacements idéaux pour le nettoyage du grain. Les marges commerciales des nettoyeurs étaient positives dans toutes les régions des Prairies et le nettoyage était généralement plus efficient dans cette partie di pays qu'aux situations portuaires. Il continuera cependant à sefaire à ces derniers endroits dans une certaine mesure, en raison du manque de capacités suffisantes aux emplacements de campagne, des coûts irrécupérabies aux installations portuaires et du fait que les élévateurs primaires ne nettoieront vraisemblablement que les céréales commercialement le plus importantes. 相似文献
88.
Summary. We report a policy experiment that illustrates a potential problem of using historical pass-through rates as a means of predicting the competitive consequences of projected firm-specific cost savings in antitrust contexts, particularly in merger analysis. The effects of cost savings on welfare can vary vastly, depending on how the savings affect the industry supply schedule. In a capacity-constrained price-setting oligopoly, we observe that cost savings can overwhelm behaviorally salient market power incentives when the savings affect marginal (high cost) units. However, cost savings of the same magnitude on an infra-marginal unit leave market power unchanged. 相似文献
89.
I Wilson 《Business Horizons》1978,21(6):65-73
The merits of strategic planning as a marketing tool are discussed in this article which takes the view that although marketers claim to be future-oriented, they focus too little attention on long-term planning and forecasting. Strategic planning, as defined by these authors, usually encompasses periods of between five and twenty-five years and places less emphasis on the past as an absolute predictor of the future. It takes a more probabilistic view of the future than conventional marketing strategy and looks at the corporation as but one component interacting with the total environment. Inputs are examined in terms of environmental, social, political, technological and economic importance. Because of its futuristic orientation, an important tenant of strategic planning is the preparation of several alternative scenarios ranging from most to least likely. By planning for a wide-range of future market conditions, a corporation is more able to be flexible by anticipating the course of future events, and is less likely to become a captive reactor--as the authors believe is now the case. An example of strategic planning at General Elecric is cited. 相似文献
90.
Should provincial business taxes be deductible under a federal profit tax? We show that the ‘optimal deductible,’ which neutralizes the vertical fiscal externality between the federal and provincial government, is the change in the federal tax base per dollar of tax revenue collected by the provincial government. The optimal payroll tax deductibility rate depends on the extent to which it is shifted to workers and on the difference between the federal tax rates on profits and on labour income. Two apparently contradictory positions – full deductibility of a payroll tax and non‐deductibility – are special cases of our model. La déductibilité des taxes provinciales imposées aux entreprises dans une fédération où il y a des externalités fiscales verticales. Est‐ce que les taxes provinciales imposées aux entreprises devraient être déductibles de l'impôt fédéral sur les profits? Les auteurs montrent que l'optimum de déductibilité qui neutralise les externalités fiscales verticales entre le fédéral et les provinces est le changement dans la base d'imposition fédérale par dollar de revenu fiscal collecté par le gouvernement provincial. Le taux de déductibilité optimal d'un impôt sur les salaires dépend de la portion du fardeau fiscal qui est déportée vers les travailleurs et de la différence entre les taux d'imposition du fédéral sur les profits et sur le revenu du travail. Deux positions apparemment contradictoires – pleine déductibilité d'un impôt sur les salaires et déductibilité nulle – sont des cas spéciaux du modèle général. 相似文献